Automobile bumper bracket



Aug. 19, 1924.' www@ j G. F. KOLB ET AL.

AUTOMOBLE BUMPER BRACKET Filed Aug 3l 1923 2 Sheets^$hee l 'fag .a

gnou/wrom Patented Aug. 19, 1924.

UNITED STATES PATENT OFFICE.

GEORGE F. KOLB, OF FATE-FIELD, AND JOHN H. LUCAS, OF BRIDGEPORT,CONNECTICUT, ASSIGNORS TO THE BULLARD MACHINE TOOL C0., OF BRIDGEPORT,CONNECTICUT,

.A CORPORATION OF CONNECTICUT. l

AUTOMOBILE BUMPER BRACKET.

Application filed August 31, 1923. Serial No. 660,264.

Togli fui/1.0m z'z may concern.' F ig. 3 is a front elevation thereof;

'Be it known that we, GEORGE` F. Koma Fig. 4 is a side elevation of amodified and JOHN H. LUoAs, citizens of the United form of attachingbracket, provided with States, and residents of Faireld and a doublespring bar bumper; 'l

Bridgeport, respectively, in the county of Fig. 5 is a front elevationthereof;

Fairfield and State of Connecticut, have Fig. 6 is a perspective outerside and invented certain new and useful Improverear view of one end ofthe single spring ments in Automobile Bumper Brackets, of bar bumper andat-taching bracket; which the following is a specifica-tion. Fig. 7 is aperspective inner side and 60 10 This invention relates to springbumpers rear view of the same, and for automobiles, and moreparticularly to Fig. 8'is a perspective outer side and rear a universalform of bracket adapted for view 0f one end of the double spring barattachment to different makes of cars, and bumper and attaching bracket.likewise to gevel-a1 Styles of bumpers, and Similar reference charactersindicate cor- 65 l5 has for its object to provide a bumper whichresponding parts throughout the several tigmay be secured to the forwardend of the lires of the drawings. i automobile frame with facility, andwith- Referring to the drawings, and more pap out the necessity ofdrilling, cutting out ticularly to Figs. 1 t0 3 and 6 and'7, the rivetsor otherwise altering the automobile embodiment of the invention showntherein 70 structure to permit the attachment of the 'comprises a singleconvexly curved spring bumper bar bumper l0, having its rear ends lbentin- Afurther object is to provide a bumper wardly, as at 11, andprovided with aligned which will be standard, in so far as it mayStraight vattaching portionsv l2. A secondi be attached to various makesof automoary reinforcing spring bar 13 engages'the 75 biles, in whichthe frame and shackle bolts bar 10 at thel rear side and has its endpor'- are of different dimensions, and to this end tions 14 bent intoS-shape, as at 15, the terit is proposed to provide a vnovel form ofIninals 16 being straight and aligned with attaching bracket. andengaging the portion 12 in` overlying A still further object is toprovide for relation. The portions 12 and 16 are adaptl 80 theadjustment of the bumper, so that it ed to be clamped to the attachingbrackets, may be properly positioned `with respect which in turn areattached to the forward to the automobile and the road-bed.y Still endsof the automobile frame. 'Inasinuch as another obj ect is to provide atype of brackthe attaching brackets at each sideA are idenet,which maybe adapted tothe provision tical in construction, only one will be dc-S5 of either single or double spring bai bumpscribed in detail. l

ers. i The attaching bracket comprises a for- YVith the above and otherobjects in view, ward portion 17 pro-vided at its upwardly embodimentsof the invention are shown in projected forward portion withan inwardlythe accompanying drawings, and these emextending and upwardly anddownwardly 90 bodiments will be hereinafter more fully deprojectingplate 18, upon which the end porscribed with referencethereto, and ntheintion 12 'of' the spring bar is engaged, the

vention will be 'vlinally pointed out in the plate being provided aboveandbelow the claims. portion 12 with flanges 19 and 20, which In thedrawings: serve to retain and position the portionA 12, 95

Fig. p 1 is a plan View of a bumper, and are provided with' threadedholes y21 according to one embodiment of theinvenand 22 for theengagement'of clamping tion, being attached to the forward end of bolts.A clamping plate 23 engages the the automobile frame; portion 16 0f thespring bar at the forward Fig. 2 is a side elevation of the attachside,and is secured at its upper land lower 100 ing bracket, at one side ofthe frame, and ends to the flanges 19 and 2O bynieans of provided with asingle bar bumper; bolts 24 and 25y engaging the holes 21 and 22, tothereby clamp the spring bars to the bracketf` lA laterally disposedreinforcing web 2G is formed integrally between the inner face of theportion 17 and the rear face of the portion 18.

At its lower end the portion 17 isprovided with a rearwardly extendinghook 27, the opening of which converges forwardly, and which is adaptedto be engaged over the spring shackle bolt 2S at the forward end of theframe 29. In order to engage the hook, the nut 30 at the inner end ofthe bolt is loosened, and the bolt fo-rced outwardly suiiiciently topermit engagement with the bolt, the tapering of the hookvpermittingsnug engagement withbolts of different diameters.

A rearwardly extending portion 31 is formed integrally with the portion17, and is outwardly offset therefrom to space it from y. the frame.Reinforcing ribs or ianges 32 extend along the upper edge and outer sideof the bracket, and also along the lower edge and outer side, beingspaced from the opening of the hook to provide a recess in which thebolt head is seated.

The portion 31 terminates in an elongated arcuate portion 33, having anarcuate slot 34 therein, described substantially about the axis of theshackle lbolt as a center.

The bracket is secured by means of a pressure lug having an aperturedlower portion l35 engaged beneath the frame, and an upwardly extendingflange 36 interposed between the outer side of the frame and the innerside of the arcuate portion 33, a hookended bolt 37, having its hook-endengaged over the inner lower edge of the channel frame, and extending atitsopposed threaded end through the aperture of the lug and the arcuateslot 34, where it is secured by a nut 38 and a lock washer 39.

With the parts in this position, and the hook bolt still loose, thebracket is adjusted to bring the face of the spring bar bumper into avertical plane with respect to the road-bed, the bracket being pivotalabout the shackle bolt with the arcuate slot engaging the hook bolt.When properly adjusted the shackle and hook bolts are tightened tosecure the bracket. With this construction the adjustment is broughtabout by means of the single hook bolt only, and the tapered hook andarcuate slot enable the bracket to be attached securely, irrespective ofthey diameter of the shackle bolt and the depth and curvature of theframe, so that the bracket may be said to be standard for practicallyall designs of automobiles.

In the modified form illustrated in Figs. 4 and 5 and 8, a double springbar bumper is provided, and the bracket is adapted for its attachment.The bumper comprises a pair of similar upper and lower spring bars 4()and 41, and a single reinforcing bar 42, the three bars being bolted toa tie-plate 43, and the ends of the bars being arranged in superimposedand staggered relation.

The bracket is similar to the other form, with the exception of thespring bar clamping portion at the forward end. In this modied form, theclamping portion 44 is provided integrally at the forward end ofthebracket, being uprightly disposed and relatively ylonger than theportion 18 of the first form. Upper and lower flanges 45 and 46 areprovided at the upper and lower ends, which engage the upper and loweredges of the spring bars, while a central vrib or flange 47 is formedupon the forward face to engage between the spaced bars and therebyretain and lposition them'.

The clamping plate 48, which is secured at its upper and lower endsbybolts 49 and 50, is provided with a pressed out interme diate portion51, which engages and positions the reinforcing bar 42 at its forwardface, and also engagesthe forward faces of the bars 40 and 41 above andbelow the portion 51. 1t will lbe understood that the bar clampingportion of the bracket may be modified, as desired, to accommodatevarious types of bars.

le have illustrated and described preferredand satisfactory embodimentsof the invention, but it will be obvious that changes may be madetherein, within the spirit and scope thereof, as defined in the appendedclaims.

Having thus described our invention,

what we claim and desire to secure by Letters Patent is: j

1. An automobile bumper bracket adapted for attachment to shackle boltsin the frame ends of an automobile, andhaving means for supporting abumper bar, and a pocket adapted for slidable and detachable i`engagement with shackle bolts of different sizes, and means for securingsaid bracket to said frame. y 2. An automobile bumper bracket` adaptedfor attachment to the frame ends of an automobile carrying shackle boltshaving headed ends, including means for supporting a bumper bar andhaving an elongated pocket for adjustable engagement beneath the head ofsaid shackle bolt, and means for securing said bracket to the frame andadapted to permit of angular adjustment of said bracket above theshackle bolt.

3. In an automobile bumper for use upon the shackle bolt carrying frameends of an automobile, the shackle bolt having a head at its end abumper bar, and an attachingbracket supporting said bar, and comprisinga shackle bolt engaging portion adapted to engage shackle bolts ofdierent diameters beneath their heads, and a portion extendingrearwardly therefrom and provided with an arcuate slot substantiallyconcentric to said shackle bolt engaging portion, a hook bolt adapted toengage the frame and extending at its threaded end through said slot,and a nut on said threaded end for securing said bolt and bracket, saidslot permitting angular adjustmennt of said bracket about the shacklebolt, said hook bolt adapted upon tightening to secure the bracket inadjusted position.

4. In an automobile bumper for use upon the shackle bolt carrying frameends of an automobile, a bumper bar, and an attaching bracket supportingsaid bar, and comprising a shackle bolt engaging portion, and a portionextending rearwardly therefrom and provided with an arcuate slotsubstantially concentric to said shackle bolt engaging portion, a hookbolt adapted to engage the frame and extending at its threaded endthrough said slot, a spacer block having a circular aperture engaged bysaid bolt and disposed between said bracket and frame and having a flatbracket engaging face, and a nut on said threaded end for securing saidbolt and bracket, said slot permitting angular adjustment of saidbracket about the shackle bolt, said hook bolt adapted upon tighteningto secure the bracket in adjusted position.

5. In an automobile bumper for use upon the shackle bolt carrying frameends of an automobile, a bumper bar, and an attaching bracket supportingsaid bar, and comprising a shackle bolt engaging portion adapted tosnugly engage shackle bolts of different diameters, and means forsecuring said bracket to the frame.

6. In an automobile bumper for use upon the shackle bolt carrying frameends of an automobile, a bumper bar, and an attaching bracket supportingsaid bar, and comprising a hook portion having a tapered opening adaptedto snugly engage shackle bolts of different diameters, and means forsecuring said bracket to the frame.

7. In an automobile bumper for use upon the shackle bolt carrying frameof an automobile, a bumperl bar, and an attaching bracket supportingsaid bar, and comprising a rearwardly extending hook portion having atapered opening adapted to snugly engage shackle bolts of differentdiameters, and a portion extending rearwardly therefrom and providedwith an arcuate slot substantially concentric to said shackle boltengaging portion, and securing means engaging said slot and adapted tobe secured to the frame, said slot permittingl angular adjustment ofsaid bracket about the shackle bolt.

8. In an automobile bumper for use upon the shackle bolt carrying frameends of an automobile, a bumper bar comprising spaced upper and lowerspring members and an intermediate rearwardly disposed reinforcingspring member, the ends of said upper and lower members being rearwardlyof and superimposed upon the end of said reinforcing member, anattaching bracket therefoiI comprising a shackle bolt engaging portion,means for securing said bracket to the frame, and an integral bumper barsupporting portion having upper and lower flanges and an intermediateprojection adapted to engage and position the ends of the upper andlower spring members, and a clamping plate secured to said portion toretain the ends of the spring members and having an intermediaterecessed portion embracing the end of the reinforcing spring member.

Signed at Bridgeport, in the county of Fairfield, and State ofConnecticut, this 30th day of Aug. A. D., 1923.

GEORGE F. KOLB. JOHN I-I. LUCAS. Witnesses C. M. NEWMAN, CARL F. JENSEN.

